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Caspian Journal of Enviromental Sciences، جلد ۲۰، شماره ۴، صفحات ۸۲۱-۸۲۶
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عنوان انگلیسی Trypsin-based diet for the growth indices of Spanish mackerel
چکیده انگلیسی مقاله To protect the sustainability of the aquaculture industry, fishmeal is being replaced with alternative feed ingredients such as plant-based protein components. However, most plant-based feedstuffs contain a wide array of anti-nutritional factors. These factors can potentially hinder nutrient consumption, which in turn can interfere with fish health and performance. Protease enzyme supplements can reverse the impacts of anti-nutritional factors and enhance fish growth. This study aimed to incorporate the trypsin enzyme into the food of Spanish mackerel and explore its effects on growth factors, body composition, and blood biochemical parameters. This study was a fully-randomized experiment with three treatments and three replications. This experiment was carried out as a completely randomized design with three treatments and three replications, and the trypsin enzyme was added to the fish diet at different levels: 0%, 0.015%, and 0.025%. For a timeframe of 60 days, the fish were given experimental diets. The growth indices considered were: specific growth rate (SGR), protein efficiency ratio (PER), condition factor (CF), feed conversion ratio (FCR), weight gain percentage (WGP), and hepatic steatosis index (HSI). The results showed that FCR, PER, SGR, and WGP at enzyme levels of 0.015% and 0.025% were substantially different from the control group.
کلیدواژه‌های انگلیسی مقاله Protease, Enzyme, Trypsin, Fish diet, Spanish mackerel
نویسندگان مقاله Waleed K. Alkhafaje |
Anesthesia Techniques Department, Al-Mustaqbal University College, Babylon, Iraq

Holya A. Lafta |
Al-Nisour University College, Baghdad, Iraq

Ali Abdulhussain Fadhil |
College of Medical Technology, Medical Lab Techniques, Al-farahidi University, Iraq

Ali Hussein Adhab |
Department of Medical Laboratory Technics, Al-Zahrawi University College, Karbala, Iraq

Ali Jalil Obaid |
Medical Laboratory Techniques Department, Hilla University College, Babylon, Iraq

Rahman S. Zabibah |
Medical Laboratory Technology Department, College of Medical Technology, The Islamic University, Najaf, Iraq

Enas R. Alwaily |
Microbiology Research Group, College of Pharmacy, Al-Ayen University, Thi-Qar, Iraq

Doha Karim Khodir |
Department of Pharmacy, Ashur University College, Baghdad, Iraq

Heba Takleef Al Salami |
Altoosi University College, Najaf, Iraq

Mansour Almouh |
College of Veterinary Medicine, Hama University, Hama, Syria

Hamdan Naef |
College of Veterinary Medicine, Al Furat University, Deirez-Zor, Syria

Mahmoud M. Abbas |
Plant Nutrition Department, National Research Centre, Cairo, Egypt

نشانی اینترنتی https://cjes.guilan.ac.ir/article_5772_dccc1ebdb002bf80e174fde3be5e7c8a.pdf
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